NiGHTS is now spr2-ised. i'll upload the relevant files and etc to the ftp

* if you can turn SF_SUPER, flash your skin's supercolor, otherwise be your normal color
* if your skin doesn't have a SPR2_NGT0 (horizontal fly), use Sonic's (this will hopefully be replaced by 2.2 with sprites of NiGHTS themselves)
* MT_NIGHTSCHAR made irrelevant, everything follows actor->target instead of actor->target->tracer now
* emerald is now player->mo->tracer instead of player->mo->tracer->target
* nightopian helpers flash for the 35 tics before they disappear
* nights capsule makes boss explosions/noises now (i can change it back i just like it better)
* drill off into the sky instead of fly up in floating pose (but no noise yet)

ALSO:
* default maxdash is now 70
* forgot to add supercolor to lua, it is there now
* SPR2_SMSL renamed to SPR2_SSTN (stun)
* any player with a skincolor that's in the super range is set to FF_FULLBRIGHT at state-set time, so no need to keep super players non-fullbright just because they use spin stuff